EP0596808A1 - Clamping head - Google Patents

Clamping head Download PDF

Info

Publication number
EP0596808A1
EP0596808A1 EP93402720A EP93402720A EP0596808A1 EP 0596808 A1 EP0596808 A1 EP 0596808A1 EP 93402720 A EP93402720 A EP 93402720A EP 93402720 A EP93402720 A EP 93402720A EP 0596808 A1 EP0596808 A1 EP 0596808A1
Authority
EP
European Patent Office
Prior art keywords
clamping head
clamping
head according
articulated
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP93402720A
Other languages
German (de)
French (fr)
Other versions
EP0596808B1 (en
Inventor
Martin Breiter
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mifsud Gilles
Original Assignee
Mifsud Gilles
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mifsud Gilles filed Critical Mifsud Gilles
Publication of EP0596808A1 publication Critical patent/EP0596808A1/en
Application granted granted Critical
Publication of EP0596808B1 publication Critical patent/EP0596808B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426—Fixtures for other work
    • B23K37/0435—Clamps
    • B23K37/0443—Jigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/08—Arrangements for positively actuating jaws using cams
    • B25B5/087—Arrangements for positively actuating jaws using cams actuated by a hydraulic or pneumatic piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/12—Arrangements for positively actuating jaws using toggle links
    • B25B5/122—Arrangements for positively actuating jaws using toggle links with fluid drive

Definitions

  • the invention relates to a clamping head for holding mechanical parts to be machined or to be prepared, in particular in the automotive field it is known to use holding or clamping devices in welding or other stations.
  • At least one clamping head generally comprising at least one clamping arm which is pivotally mounted between at least one clamping position and a loosening position and which is actuated in rotation by a drive system provided with '' an actuating part guided in an alternating movement, while said part is connected to said arm by an articulated system comprising at least one connecting rod articulated by one of its ends to at least one actuating lever pivoting and integral in rotation of said clamping arm.
  • the part to be held can then be clamped between the clamping arm, the end of which is fitted accordingly and a counterpart.
  • Patent 2340798 proposes a clamping head with irreversible blocking making it possible to ensure maintenance in the event of accidental interruption of the control energy source.
  • patent 2630953 proposes to guide the rod of the jack in a non-rectilinear manner in the clamping position.
  • Such a system also has the advantage of being able to act within certain limits on the law of forces in said clamping position.
  • the invention provides a completely advantageous clamping head, which is compact thanks to a stroke of the actuating part limited and which allows control of the movements and of the forces when tightening and loosening.
  • the clamping head according to the invention comprises at least one clamping arm and an articulated system of the type mentioned in connection with the last document cited, but it is remarkable in that the fixed guide means is produced in the form of 'at least one curvilinear guide groove formed in the head.
  • the curvilinear groove has substantially the general shape of an S.
  • the means for guiding the rocker consists of at least one roller.
  • the axis of said roller is not disposed on the geometric line which joins the points of articulation of the rocker with, on the one hand, the link and, on the other hand, the actuation part.
  • the actuating part is guided by at at least one roller with which it is provided and at least one rectilinear guide groove formed in the guide head and preferably the roller of the actuating part is arranged around the axis of articulation of said part with the rocking lever.
  • the invention proposes an embodiment which is remarkable in that it comprises a position blocking system which acts elastically on the rocking lever to force the latter into its released position and into its clamping position.
  • the tightening security in the event of an inadvertent cut in the energy source is comprehensive.
  • the invention goes further by also proposing safety in the release position because a simple untimely change of position of the arm can be dangerous, even if no part is in danger of falling.
  • the locking system comprises at least one pressure roller guided and urged by an elastic means to come to bear on the rocker lever whose suitable shape allows said roller to force said rocker towards each of its positions respectively. loosening and tightening.
  • the elastic means which urges the pressure roller is a leaf spring provided with means for adjusting and / or suppressing the tension.
  • the guide grooves are formed in pairs in two flanges of the clamping head arranged opposite one another, while the corresponding rollers are also provided in pairs.
  • the actuating lever can be fixed in rotation with the clamping arm by a shaft secured to said lever and on which the arm is fixed, while said shaft is mounted in bearings arranged in the flanges of the clamping head.
  • the clamping head according to the invention may comprise only a single link which acts on a pair of actuating levers
  • the rocking lever may be constituted by two plates fixed together, the actuating part being articulated between said plates ...
  • clamping head can comprise several arms, for example fixed on the same shaft.
  • each clamping arm an articulated system provided with at least one roller cooperating with at least one curvilinear groove guide, the systems being positioned symmetrically with respect to a plane so that the drive system maneuvers the arms of the pair in reverse rotation.
  • the articulated systems therefore have a common actuation system possibly provided with a double actuation part.
  • the clamping device shown in FIGS. 1 and 2 comprises a clamping head 1, a position detection unit 2 and an actuation system 3.
  • the clamping head 1 comprises a body 4, a clamping arm 5 pivotally mounted in said body 4 (shown in the clamping position in FIG. 1 and not shown in FIG. 2) and in this example, a fixing plate 6 for place the device on any suitable support.
  • the actuation system 3 is here provided with a cylinder which will be discussed below, said cylinder may be pneumatic, hydraulic, mechanical, or electric, but it could be any other system (rack, ).
  • FIG. 1 also shows an electrical connector 9 on the position detection box 2.
  • the body 4 of the head 1 is formed by two flanges 4a, 4b.
  • Figures 3 to 5 show only one of the flanges, here the flange 4a seen from the inside.
  • the flanges 4a and 4b form a rotation bearing for a shaft 10 integral in rotation with the arm 5, for example by means of a clamping bracket, as shown in FIG. 1.
  • an articulated system comprising a pair of levers 11a, 11b (FIGS. 2 to 5), integral in rotation with the shaft 10 and articulated at the end of a link 12 of which the other end is articulated to a rocking lever formed by two symmetrical plates 13a, 13b ( Figure 2).
  • the shaft 10 can be replaced by a fixed axis of the head, the arm rotating around said axis and then being integral in rotation with the levers 11a, 11b.
  • the rocking lever (13a, 13b) is also articulated by a pin 14 disposed between its constituent plates 13a, 13b to a slide 15 fixed to the end of the rod 16 of the actuating cylinder mentioned above but not shown more specially.
  • rollers 17a, 17b and the corresponding grooves such as 18a have the effect of guiding the end of the slide 15 in a rectilinear movement back and forth, likewise causing the axis 14 of articulation of the rocking lever (13a, 13b) .
  • the rocking lever (13a, 13b) is also provided with another pair of rollers 19a, 19b mounted on a common axis 20.
  • the rollers 19a, 19b are intended to roll or slide in corresponding curvilinear guide grooves such as 21a (FIGS. 3 to 5) formed on the flanges 4a, 4b of the body 4 (it is also understood that, as for the aforementioned rectilinear groove, the other groove of the flange 4b is not visible on the drawings).
  • the rollers 17a, 17b and 19a, 19b can of course be replaced by pads or the like, while each pair of rollers can be replaced equivalently by a single roller, unless their axis 14, 20 is not sufficient.
  • the grooves such as 21a here have a general S shape.
  • the shape of the rocking lever (13a, 13b) and the arrangement of its articulation points (articulation with the slide, arranged here in this example at the top of the triangle formed by said points) as well as the shape of the curvilinear grooves are provided for ensuring a tilting of said rocker lever at the same time as one of its points (articulation with the slide) moves linearly.
  • FIGS. 3 to 5 the axis of the clamping arm 5 is shown diagrammatically in dashed lines 5 ′, said figures representing the device in three loosening positions respectively (FIG. 3), that is to say inactive, intermediate ( Figure 4) and tightening (Figure 5).
  • FIG. 5 therefore corresponds substantially to the position of FIG. 1.
  • the arm here substantially makes an angle of approximately 105 ° with the horizontal in order to end up in the clamping (or also called closing) position practically horizontal.
  • rollers 17a and 19a are in the lower extreme positions of the guide grooves 18a and 21a respectively, as is of course the corresponding rollers 17b and 19b in their respective grooves, said rollers 17b and 19b being in fact the only ones visible in said figures 3 to 5.
  • This locking system comprises in particular a pair of pressure rollers such as the roller 22b in FIGS. 3 to 5.
  • the rollers such as 22b are mounted on a common axis 23 whose ends are guided in corresponding rectilinear grooves such as 24a formed also in the flanges 4a, 4b.
  • the grooves such as 24a are arranged substantially perpendicular to the grooves such as 21a.
  • the axis 23 is urged by an elastic means such as the leaf spring 25 shown which urges the rollers such as 22b to come to bear on the rocking lever, a roller on each plate 13a, 13b of said lever.
  • the profile of the plates 13a, 13b of the rocking lever is studied to constitute real cams.
  • roller 22b urges the plate 13b of the rocking lever in this position by forcing said lever to rotate even more (roller 22b above the hinge pin 14).
  • a double head makes it possible to design a clamp system with a single drive system 3 possibly provided with a double slide 15.
  • a double head makes it possible to design a clamp system with a single drive system 3 possibly provided with a double slide 15.

Abstract

The invention relates to a clamping head including at least one clamping arm (5') which is mounted so that it pivots between at least one clamped position and one unclamped position, and which is actuated in terms of rotation by a drive system (3) equipped with an actuating component (15) guided with a reciprocating movement, whereas the said component (15) is connected to the said arm by an articulated system including at least one link rod (12) which is articulated via one of its ends to at least one actuating lever (11b) which is pivoting and rotationally secured to the said clamping arm (5'), whereas the other end of the link rod (12) is articulated to a rocker lever (13b), itself articulated to the said actuating component (15) and which includes a guide means which is located at a distance from its points of articulation to the said connecting rod (12) and the said actuating component (15) and which is intended to interact with a conjugate fixed guide means. The invention is noteworthy in that the fixed guide means is produced in the form of at least one curved guide groove (21a) formed in the head and having, for example, the overall shape of an S, whereas the means for guiding the rocker is, for example, made up of at least one roller of (19b). <IMAGE>

Description

L'invention concerne une tête de bridage pour maintenir des pièces mécaniques à usiner ou à préparer, notammant dans le domaine automobile il est connu d'utiliser des dispositifs de maintien ou de bridage dans les postes de soudage ou autres.The invention relates to a clamping head for holding mechanical parts to be machined or to be prepared, in particular in the automotive field it is known to use holding or clamping devices in welding or other stations.

Ces dispositifs sont pourvus d'au moins une tête de bridage comportant généralement au moins un bras de serrage qui est monté pivotant entre au moins une position de serrage et une position de desserrage et qui est actionné en rotation par un système d'entraînement muni d'une pièce d'actionnement guidée en un mouvement alternatif, tandis que ladite pièce est reliée audit bras par un système articulé comportant au moins une biellette articulée par l'une de ses extrémités à au moins un levier d'actionnement pivotant et solidaire en rotation dudit bras de serrage.These devices are provided with at least one clamping head generally comprising at least one clamping arm which is pivotally mounted between at least one clamping position and a loosening position and which is actuated in rotation by a drive system provided with '' an actuating part guided in an alternating movement, while said part is connected to said arm by an articulated system comprising at least one connecting rod articulated by one of its ends to at least one actuating lever pivoting and integral in rotation of said clamping arm.

C'est par exemple le cas dans des dispositifs décrits dans les brevets FR-2340798 et FR-2630953.This is for example the case in devices described in patents FR-2340798 and FR-2630953.

La pièce à maintenir peut alors être serrée entre le bras de serrage dont l'extrémité est aménagée en conséquence et une contrepièce.The part to be held can then be clamped between the clamping arm, the end of which is fitted accordingly and a counterpart.

Le brevet 2340798 propose une tête de bridage à blocage irréversible permettant d'assurer un maintien en cas de coupure accidentelle de la source d'énergie de commande.Patent 2340798 proposes a clamping head with irreversible blocking making it possible to ensure maintenance in the event of accidental interruption of the control energy source.

Pour éviter toutefois certains risques de blocage intempestifs à l'ouverture, le brevet 2630953 propose de guider la tige du vérin de façon non rectiligne en position de serrage.To avoid however certain risks of untimely blocking on opening, patent 2630953 proposes to guide the rod of the jack in a non-rectilinear manner in the clamping position.

Un tel système présente en outre l'intérêt de pouvoir agir dans certaines limites sur la loi des efforts dans ladite position de serrage.Such a system also has the advantage of being able to act within certain limits on the law of forces in said clamping position.

Il a aussi été imaginé, comme le rappelle le document EP-A-0370914, un dispositif du type précité dont l'autre extrémité de la biellette est articulée à un levier complémentaire, lui-même articulé à la pièce d'actionnement, l'axe d'articulation de la biellette avec ledit levier étant pourvu de galets destinés à venir au contact d'une rampe.It has also been imagined, as recalled in document EP-A-0370914, a device of the aforementioned type, the other end of the link is articulated to a complementary lever, itself articulated to the actuating part, the axis of articulation of the link with said lever being provided with rollers intended to come into contact with a ramp.

Cependant, ces dispositifs, à cause de leur système d'articulation en simple "genouillère" ou même avec le levier complémentaire précité, nécessitent une course importante du vérin et donc un encombrement qui peut être gênant.However, these devices, because of their articulation system in simple "toggle" or even with the complementary lever above, require a large stroke of the cylinder and therefore a space which can be annoying.

Bien que d'une géométrie et d'un actionnement différents, le document US-A-3,347,542 décrit un dispositif dont l'embiellage est pourvu aussi d'un levier complémentaire qui est articulé à une biellette et une pièce d'actionnement, mais qui comporte en outre un moyen de guidage qui est disposé à distance de ses points d'articulation avec ladite biellette et ladite pièce d'actionnement et qui est destiné à coopérer avec un moyen de guidage fixe conjugué.Although of different geometry and actuation, document US-A-3,347,542 describes a device whose crankshaft is also provided with an additional lever which is articulated to a rod and an actuating part, but which further comprises a guide means which is arranged at a distance from its points of articulation with said rod and said actuation part and which is intended to cooperate with a fixed fixed guide means.

Tous ces dispositifs connus ne permettent une action que très limitée, voire impossible, sur la loi des mouvements et/ou des efforts.All these known devices allow only a very limited action, even impossible, on the law of movements and / or efforts.

Or, il est de plus en plus nécessaire de pouvoir imaginer des dispositifs capables de répondre à des lois spécifiques de mouvement et/ou d'effort de manière à moduler la vitesse de rotation du bras de serrage (par exemple avec accélération vers le milieu du mouvement) mais aussi permettre de moduler les efforts, par exemple en multipliant les forces en fin de course de serrage.However, it is increasingly necessary to be able to imagine devices capable of responding to specific laws of movement and / or force so as to modulate the speed of rotation of the clamping arm (for example with acceleration towards the middle of the movement) but also allow the forces to be modulated, for example by multiplying the forces at the end of the tightening stroke.

C'est pourquoi l'invention propose une tête de bridage tout à fait avantageuse, qui est peu encombrante grâce à une course de la pièce d'actionnement limitée et qui permet un contrôle des mouvements et des efforts au serrage et au desserrage.This is why the invention provides a completely advantageous clamping head, which is compact thanks to a stroke of the actuating part limited and which allows control of the movements and of the forces when tightening and loosening.

Pour cela, la tête de bridage selon l'invention comporte au moins un bras de serrage et un système articulé du type mentionné à propos du dernier document cité, mais elle est remarquable en ce que le moyen de guidage fixe est réalisé sous la forme d'au moins une rainure curviligne de guidage ménagée dans la tête.For this, the clamping head according to the invention comprises at least one clamping arm and an articulated system of the type mentioned in connection with the last document cited, but it is remarkable in that the fixed guide means is produced in the form of 'at least one curvilinear guide groove formed in the head.

L'étude du dessin de la rainure de guidage va permettre de moduler à volonté les lois de mouvement et d'effort du bras de serrage. Avantageusement, la rainure curviligne présente sensiblement la forme générale d'un S.The study of the design of the guide groove will make it possible to modulate the laws of movement and force of the clamping arm at will. Advantageously, the curvilinear groove has substantially the general shape of an S.

De préférence, le moyen de guidage du basculeur est constitué par au moins un galet. Par exemple dans ce cas, bien que cela ne soit pas obligatoire, l'axe dudit galet n'est pas disposé sur la ligne géométrique qui joint les points d'articulation du basculeur avec, d'une part, la biellette et, d'autre part, la pièce d'actionnement.Preferably, the means for guiding the rocker consists of at least one roller. For example in this case, although this is not compulsory, the axis of said roller is not disposed on the geometric line which joins the points of articulation of the rocker with, on the one hand, the link and, on the other hand, the actuation part.

Avantageusement, la pièce d'actionnement est guidée par au moins un galet dont elle est munie et au moins une rainure rectiligne de guidage ménagée dans la tête de guidage et de préférence le galet de la pièce d'actionnement est aménagé autour de l'axe d'articulation de ladite pièce avec le levier basculeur.Advantageously, the actuating part is guided by at at least one roller with which it is provided and at least one rectilinear guide groove formed in the guide head and preferably the roller of the actuating part is arranged around the axis of articulation of said part with the rocking lever.

Pour des raisons de sécurité, l'invention propose un mode de réalisation qui est remarquable en ce qu'il comporte un système de blocage de position qui vient agir élastiquement sur le levier basculeur pour forcer celui-ci dans sa position de desserrage et dans sa position de serrage.For security reasons, the invention proposes an embodiment which is remarkable in that it comprises a position blocking system which acts elastically on the rocking lever to force the latter into its released position and into its clamping position.

La sécurité au serrage en cas de coupure intempestive de la source d'énergie est compréhensive. L'invention va plus loin en proposant aussi une sécurité en position de desserrage car un simple changement de position intempestif du bras peut s'avérer dangereux, même si aucune pièce ne risque de tomber.The tightening security in the event of an inadvertent cut in the energy source is comprehensive. The invention goes further by also proposing safety in the release position because a simple untimely change of position of the arm can be dangerous, even if no part is in danger of falling.

De préférence dans ce cas, le système de blocage comporte au moins un galet de pression guidé et sollicité par un moyen élastique à venir s'appuyer sur le levier basculeur dont la forme appropriée permet audit galet de forcer ledit basculeur vers chacune de ses positions respectivement de desserrage et de serrage.Preferably in this case, the locking system comprises at least one pressure roller guided and urged by an elastic means to come to bear on the rocker lever whose suitable shape allows said roller to force said rocker towards each of its positions respectively. loosening and tightening.

Avantageusement, le moyen élastique qui sollicite le galet de pression est un ressort à lame muni d'un moyen de réglage et/ou de suppression de la tension.Advantageously, the elastic means which urges the pressure roller is a leaf spring provided with means for adjusting and / or suppressing the tension.

Selon un mode de réalisation, les rainures de guidage sont ménagées par paire dans deux flasques de la tête de bridage disposés en regard l'un de l'autre, tandis que les galets correspondants sont aussi prévus par paire. Dans ce cas, sans que cela soit obligatoire, le levier d'actionnement peut être solidaire en rotation avec le bras de serrage par un arbre solidaire dudit levier et sur lequel est fixé le bras, tandis que ledit arbre est monté dans des paliers aménagés dans les flasques de la tête de bridage.According to one embodiment, the guide grooves are formed in pairs in two flanges of the clamping head arranged opposite one another, while the corresponding rollers are also provided in pairs. In this case, without this being compulsory, the actuating lever can be fixed in rotation with the clamping arm by a shaft secured to said lever and on which the arm is fixed, while said shaft is mounted in bearings arranged in the flanges of the clamping head.

De même, la tête de bridage selon l'invention peut ne comporter qu'une seule biellette qui vient agir sur une paire de leviers d'actionnement, le levier basculeur peut-être constitué par deux plaques fixées entre elles, la pièce d'actionnement étant articulée entre lesdites plaques...Similarly, the clamping head according to the invention may comprise only a single link which acts on a pair of actuating levers, the rocking lever may be constituted by two plates fixed together, the actuating part being articulated between said plates ...

En outre, on comprend que la tête de bridage peut comporter plusieurs bras, par exemple fixés sur le même arbre.In addition, it is understood that the clamping head can comprise several arms, for example fixed on the same shaft.

Selon un mode de réalisation intéressant pourvu d'au moins une paire de bras de serrage et un seul système d'entraînement, on peut prévoir pour chaque bras de serrage un système articulé muni d'au moins un galet coopérant avec au moins une rainure curviligne de guidage, les systèmes étant positionnés symétriquement par rapport à un plan de manière telle que le système d'entraînement manoeuvre les bras de la paire en rotation inverse.According to an advantageous embodiment provided with at least one pair of clamping arms and a single drive system, one can provide for each clamping arm an articulated system provided with at least one roller cooperating with at least one curvilinear groove guide, the systems being positioned symmetrically with respect to a plane so that the drive system maneuvers the arms of the pair in reverse rotation.

Les systèmes articulés ont donc un système d'actionnement commun muni éventuellement d'une pièce d'actionnement double.The articulated systems therefore have a common actuation system possibly provided with a double actuation part.

On confectionne ainsi une sorte de pince au moyen d'une tête double.We thus make a kind of pliers by means of a double head.

L'invention sera bien comprise et d'autres particularités apparaîtront à la lecture de la description qui va suivre et qui se réfère aux dessins annexés dans lesquels:

  • la figure 1 montre en perspective un dispositif de bridage muni d'une tête selon l'invention,
  • la figure 2 est une vue arrière du dispositif de la figure 1,
  • les figures 3 à 5 montrent le système articulé de la tête de bridage (l'un des flasques du corps étant retiré) dans trois positions respectivement de desserrage, intermédiaire et de serrage.
The invention will be clearly understood and other particularities will appear on reading the description which follows and which refers to the appended drawings in which:
  • FIG. 1 shows in perspective a clamping device provided with a head according to the invention,
  • FIG. 2 is a rear view of the device of FIG. 1,
  • Figures 3 to 5 show the articulated system of the clamping head (one of the flanges of the body being removed) in three positions of loosening, intermediate and clamping respectively.

Le dispositif de bridage représenté sur les figures 1 et 2 comporte une tête de bridage 1, un boîtier de détection 2 de position et un système d'actionnement 3.The clamping device shown in FIGS. 1 and 2 comprises a clamping head 1, a position detection unit 2 and an actuation system 3.

La tête de bridage 1 comporte un corps 4, un bras de serrage 5 monté pivotant dans ledit corps 4 (représenté en position de serrage sur la figure 1 et non représenté sur la figure 2) et dans cet exemple, une plaque de fixation 6 pour disposer le dispositif sur tout support approprié.The clamping head 1 comprises a body 4, a clamping arm 5 pivotally mounted in said body 4 (shown in the clamping position in FIG. 1 and not shown in FIG. 2) and in this example, a fixing plate 6 for place the device on any suitable support.

Le système d'actionnement 3 est ici pourvu d'un vérin dont il sera question ci-après, ledit vérin pouvant être pneumatique, hydraulique, mécanique, ou électrique, mais il pourrait s'agir de tout autre système (crémaillère, ...).The actuation system 3 is here provided with a cylinder which will be discussed below, said cylinder may be pneumatic, hydraulic, mechanical, or electric, but it could be any other system (rack, ...).

Dans cet exemple, il s'agit d'un vérin pneumatique à double effet dont on peut voir les raccords de connexion pneumatique 7 et 8 sur la figure 1.In this example, it is a double-acting pneumatic cylinder, the pneumatic connection fittings 7 and 8 of which can be seen in FIG. 1.

Par ailleurs, la figure 1 montre aussi un connecteur électrique 9 sur le boîtier 2 de détection de position.Furthermore, FIG. 1 also shows an electrical connector 9 on the position detection box 2.

Comme le montrent plus particulièrement les figures 1 et 2, le corps 4 de la tête 1 est formé par deux flasques 4a, 4b.As shown more particularly in Figures 1 and 2, the body 4 of the head 1 is formed by two flanges 4a, 4b.

Les figures 3 à 5 montrent seulement l'un des flasques, ici le flasque 4a vu par l'intérieur.Figures 3 to 5 show only one of the flanges, here the flange 4a seen from the inside.

Les flasques 4a et 4b forment un palier de rotation pour un arbre 10 solidaire en rotation du bras 5, par exemple au moyen d'un étrier de serrage, comme le montre la figure 1.The flanges 4a and 4b form a rotation bearing for a shaft 10 integral in rotation with the arm 5, for example by means of a clamping bracket, as shown in FIG. 1.

Entre les flasques 4a et 4b, est disposé un système articulé comportant une paire de leviers 11a, 11b (figures 2 à 5), solidaires en rotation avec l'arbre 10 et articulés à l'extrémité d'une biellette 12 dont l'autre extrémité est articulée à un levier basculeur formé de deux plaques symétriques 13a, 13b (figure 2). Toutefois, l'arbre 10 peut être remplacé par un axe fixe de la tête, le bras tournant autour dudit axe et étant alors solidaire en rotation des leviers 11a, 11b.Between the flanges 4a and 4b, is disposed an articulated system comprising a pair of levers 11a, 11b (FIGS. 2 to 5), integral in rotation with the shaft 10 and articulated at the end of a link 12 of which the other end is articulated to a rocking lever formed by two symmetrical plates 13a, 13b (Figure 2). However, the shaft 10 can be replaced by a fixed axis of the head, the arm rotating around said axis and then being integral in rotation with the levers 11a, 11b.

Le levier basculeur (13a,13b) est en outre articulé par un axe 14 disposé entre ses plaques constitutives 13a, 13b à un coulisseau 15 fixé à l'extrémité de la tige 16 du vérin d'actionnement mentionné ci-avant mais non représenté plus spécialement.The rocking lever (13a, 13b) is also articulated by a pin 14 disposed between its constituent plates 13a, 13b to a slide 15 fixed to the end of the rod 16 of the actuating cylinder mentioned above but not shown more specially.

Sur l'axe 14 d'articulation du levier basculeur (13a,13b) avec le coulisseau 15 sont en outre montés rotatifs deux galets 17a, 17b destinés à venir rouler ou glisser dans des rainures rectilignes et symétriques telle que 18a (figures 3 à 5) ménagées à cet effet dans les flasques 4a, 4b (on comprend qu'une rainure non représentée correspondant à la rainure 18a est prévue dans le flasque 4b).On the axis 14 of articulation of the rocking lever (13a, 13b) with the slide 15 are further rotatably mounted two rollers 17a, 17b intended to come to roll or slide in rectilinear and symmetrical grooves such as 18a (Figures 3 to 5 ) provided for this purpose in the flanges 4a, 4b (it is understood that a not shown groove corresponding to the groove 18a is provided in the flange 4b).

Les galets 17a, 17b et les rainures correspondantes telle que 18a ont pour effet de guider l'extrémité du coulisseau 15 en un mouvement rectiligne de va et vient, entraînant de même l'axe 14 d'articulation du levier basculeur (13a,13b).The rollers 17a, 17b and the corresponding grooves such as 18a have the effect of guiding the end of the slide 15 in a rectilinear movement back and forth, likewise causing the axis 14 of articulation of the rocking lever (13a, 13b) .

Le levier basculeur (13a,13b) est en outre pourvu d'une autre paire de galets 19a, 19b montés sur un axe commun 20.The rocking lever (13a, 13b) is also provided with another pair of rollers 19a, 19b mounted on a common axis 20.

Les galets 19a, 19b sont destinés à rouler ou glisser dans des rainures curvilignes correspondantes de guidage telle que 21a (figures 3 à 5) ménagées sur les flasques 4a, 4b du corps 4 (on comprend aussi que, comme pour la rainure rectiligne précitée, l'autre rainure du flasque 4b n'est pas visible sur les dessins). Les galets 17a, 17b et 19a, 19b peuvent bien sûr être remplacés par des patins ou similaire, tandis que chaque paire de galets peut être remplacée de manière équivalente par un rouleau unique, à moins même que leur axe 14, 20 ne soit suffisant.The rollers 19a, 19b are intended to roll or slide in corresponding curvilinear guide grooves such as 21a (FIGS. 3 to 5) formed on the flanges 4a, 4b of the body 4 (it is also understood that, as for the aforementioned rectilinear groove, the other groove of the flange 4b is not visible on the drawings). The rollers 17a, 17b and 19a, 19b can of course be replaced by pads or the like, while each pair of rollers can be replaced equivalently by a single roller, unless their axis 14, 20 is not sufficient.

Comme le montrent en outre les figures 3 à 5, les rainures telle que 21a présentent ici une forme générale en S.As FIGS. 3 to 5 also show, the grooves such as 21a here have a general S shape.

La forme du levier basculeur (13a,13b) et la disposition de ses points d'articulation (articulation avec le coulisseau, disposé ici dans cet exemple au sommet du triangle formé par lesdits points) de même que la forme des rainures curvilignes sont prévues pour assurer un basculement dudit levier basculeur en même temps que l'un de ses points (articulation avec le coulisseau) se déplace linéairement.The shape of the rocking lever (13a, 13b) and the arrangement of its articulation points (articulation with the slide, arranged here in this example at the top of the triangle formed by said points) as well as the shape of the curvilinear grooves are provided for ensuring a tilting of said rocker lever at the same time as one of its points (articulation with the slide) moves linearly.

Sur les figures 3 à 5, on a schématisé en trait mixte 5' l'axe du bras de serrage 5, lesdites figures représentant le dispositif dans trois positions respectivement de desserrage (figure 3), c'est-à-dire inactive, intermédiaire (figure 4) et de serrage (figure 5).In FIGS. 3 to 5, the axis of the clamping arm 5 is shown diagrammatically in dashed lines 5 ′, said figures representing the device in three loosening positions respectively (FIG. 3), that is to say inactive, intermediate (Figure 4) and tightening (Figure 5).

La position de la figure 5 correspond donc sensiblement à la position de la figure 1.The position of FIG. 5 therefore corresponds substantially to the position of FIG. 1.

A partir de la position de desserrage (ou encore dite d'ouverture) le bras fait ici sensiblement un angle d'environ 105° avec l'horizontale pour finir en position de serrage (ou encore dite de fermeture) pratiquement à l'horizontale.From the loosening (or also called opening) position, the arm here substantially makes an angle of approximately 105 ° with the horizontal in order to end up in the clamping (or also called closing) position practically horizontal.

En partant de la position de la figure 3 (position de desserrage) on constate que les galets 17a et 19a sont dans les positions extrêmes inférieures des rainures de guidage respectivement 18a et 21a, de même bien entendu que les galets correspondants 17b et 19b dans leurs rainures respectives, lesdits galets 17b et 19b étant en fait les seuls visibles sur lesdites figures 3 à 5.Starting from the position of FIG. 3 (loosening position), it can be seen that the rollers 17a and 19a are in the lower extreme positions of the guide grooves 18a and 21a respectively, as is of course the corresponding rollers 17b and 19b in their respective grooves, said rollers 17b and 19b being in fact the only ones visible in said figures 3 to 5.

Au contraire, dans la position de serrage de la figure 5, les galets précités sont en bout de course aux autres extrémités des rainures 18a et 21a.On the contrary, in the clamping position of FIG. 5, the aforementioned rollers are at the end of their travel at the other ends of the grooves 18a and 21a.

Alors que le levier 11b (et son homologue) aura tourné d'environ 105° entre ses deux positions extrêmes (de même bien sûr que le bras de serrage 5), la biellette 12 et le levier basculeur (13a,13b) auront subi des mouvements plus compliqués comme on peut le constater grâce à la figure 4 intermédiaire.While the lever 11b (and its counterpart) will have rotated approximately 105 ° between its two extreme positions (the same of course as the clamping arm 5), the link 12 and the rocking lever (13a, 13b) will have undergone more complicated movements as can be seen from Figure 4 intermediate.

En basculant, le levier (13a,13b) entraîne dans un mouvement équivalent son articulation avec la biellette 12.By tilting, the lever (13a, 13b) drives in an equivalent movement its articulation with the link 12.

Ainsi, on pourra en dessinant convenablement les rainures de guidage telle que 21a obtenir des mouvements et des formes adaptées à l'application désirée par exemple en imposant une vitesse accélérée puis décélérée respectivement au début et en fin de mouvement aussi bien au serrage qu'au desserrage, etc.Thus, it will be possible by suitably drawing the guide grooves such as 21a to obtain movements and shapes adapted to the desired application for example by imposing an accelerated and then decelerated speed respectively at the start and at the end of movement as well at tightening as at loosening, etc.

En vue d'assurer un blocage temporaire dans les positions représentées sur les figures 3 et 5, même en l'absence d'énergie l'invention propose un système qui utilise le levier basculeur (13a,13b).In order to ensure a temporary blocking in the positions shown in Figures 3 and 5, even in the absence of energy the invention provides a system which uses the rocking lever (13a, 13b).

Ce système de blocage comporte notamment une paire de galets de pression tel que le galet 22b sur les figures 3 à 5. Les galets tel que 22b sont montés sur un axe commun 23 dont les extrémités sont guidées dans des rainures rectilignes correspondantes telle que 24a ménagées aussi dans les flasques 4a, 4b.This locking system comprises in particular a pair of pressure rollers such as the roller 22b in FIGS. 3 to 5. The rollers such as 22b are mounted on a common axis 23 whose ends are guided in corresponding rectilinear grooves such as 24a formed also in the flanges 4a, 4b.

Les rainures telle que 24a sont disposées sensiblement perpendiculairement aux rainures telle que 21a.The grooves such as 24a are arranged substantially perpendicular to the grooves such as 21a.

En outre, l'axe 23 est sollicité par un moyen élastique tel le ressort à lame 25 représenté qui sollicite les galets tel que 22b à venir s'appuyer sur le levier basculeur, un galet sur chaque plaque 13a, 13b dudit levier.In addition, the axis 23 is urged by an elastic means such as the leaf spring 25 shown which urges the rollers such as 22b to come to bear on the rocking lever, a roller on each plate 13a, 13b of said lever.

Le profil des plaques 13a, 13b du levier basculeur est étudié pour constituer de véritables cames.The profile of the plates 13a, 13b of the rocking lever is studied to constitute real cams.

En position de desserrage (figure 3), on peut voir que le galet 22b sollicite la plaque 13b du levier basculeur dans cette position en forçant ledit levier à tourner encore plus (galet 22b au-dessus de l'axe d'articulation 14).In the release position (Figure 3), we can see that the roller 22b urges the plate 13b of the rocking lever in this position by forcing said lever to rotate even more (roller 22b above the hinge pin 14).

On obtient un forçage identique dans l'autre position (figure 5), le levier basculeur étant alors sollicité en rotation inverse (galet 22b en dessous de l'axe 14).An identical forcing is obtained in the other position (FIG. 5), the rocking lever then being urged in reverse rotation (roller 22b below the axis 14).

Pour passer de la position de la figure 3 à la position de la figure 5, on peut voir les profils suivis par les galets et notamment le creux tel que 26b prévu sur les plaques du levier basculeur.To pass from the position of FIG. 3 to the position of FIG. 5, one can see the profiles followed by the rollers and in particular the hollow such as 26b provided on the plates of the rocking lever.

Afin de régler et/ou supprimer la tension du ressort 25, on a prévu une vis de réglage 27 qui vient appuyer sur ledit ressort. Ainsi si on veut débloquer le système manuellement, il suffit d'agir sur la tension du ressort en dévissant la vis 27.In order to adjust and / or remove the tension of the spring 25, we have provided an adjustment screw 27 which presses on said spring. So if you want to unlock the system manually, you just have to act on the spring tension by unscrewing the screw 27.

De nombreuses modifications peuvent être apportées sans sortir du cadre de l'invention, notamment en ce qui concerne les structures par paires, le moyen élastique de blocage, l'axe d'articulation 14 avec le coulisseau 15 qui sert aussi d'axe pour les galets 17a, 17b, la pièce et l'organe d'actionnement, etc.Many modifications can be made without departing from the scope of the invention, in particular as regards the structures in pairs, the elastic locking means, the hinge pin 14 with the slide 15 which also serves as an axis for the rollers 17a, 17b, the part and the actuating member, etc.

De plus, comme déjà dit, une tête double permet de concevoir un système de pince avec un seul système d'entraînement 3 muni éventuellement d'un coulisseau 15 double. Pour cela, il suffit, par exemple, de prévoir deux systèmes articulés, tels que représentés sur les dessins, disposés l'un en face de l'autre ou dos à dos, pour avoir deux bras qui pivotent en sens inverse chacun autour d'un axe.In addition, as already said, a double head makes it possible to design a clamp system with a single drive system 3 possibly provided with a double slide 15. For this, it suffices, for example, to provide two articulated systems, as shown in the drawings, arranged one opposite the other or back to back, to have two arms which pivot in opposite directions each around an axe.

Claims (14)

1) Tête de bridage comportant au moins un bras de serrage (5) qui est monté pivotant entre au moins une position de serrage et une position de desserrage et qui est actionné en rotation par un système d'entraînement (3) muni d'une pièce d'actionnement (15) guidée en un mouvement alternatif, tandis que ladite pièce (15) est reliée audit bras par un système articulé comportant au moins une biellette (12) articulée par l'une de ses extrémités à au moins un levier d'actionnement (11a,11b) pivotant et solidaire en rotation dudit bras de serrage (5), tandis que l'autre extrémité de la biellette (12) est articulée à un levier basculeur (13a,13b), lui-même articulé à ladite pièce d'actionnement (15), et qui comporte un moyen de guidage qui est disposé à distance de ses points d'articulation avec ladite biellette (12) et ladite pièce d'actionnement et qui est destiné à coopérer avec un moyen de guidage fixe conjugué, caractérisée en ce que le moyen de guidage fixe est réalisé sous la forme d'au moins une rainure curviligne (21a) de guidage ménagée dans la tête. 1) Clamping head comprising at least one clamping arm (5) which is pivotally mounted between at least one clamping position and a loosening position and which is actuated in rotation by a drive system (3) provided with a actuating part (15) guided in an alternating movement, while said part (15) is connected to said arm by an articulated system comprising at least one connecting rod (12) articulated by one of its ends to at least one lever d actuation (11a, 11b) pivoting and integral in rotation with said clamping arm (5), while the other end of the link (12) is articulated to a rocking lever (13a, 13b), itself articulated to said actuating part (15), and which comprises a guiding means which is arranged at a distance from its points of articulation with said connecting rod (12) and said actuating part and which is intended to cooperate with a fixed guiding means conjugate, characterized in that the guide means fix e is produced in the form of at least one curvilinear groove (21a) for guiding formed in the head. 2) Tête de bridage selon la revendication 1, caractérisée en ce que la rainure curviligne (21a) présente sensiblement la forme générale d'un S. 2) clamping head according to claim 1, characterized in that the curvilinear groove (21a) has substantially the general shape of an S. 3) Tête de bridage selon l'une des revendications 1 et 2, caractérisée en ce que le moyen de guidage du basculeur est constitué par au moins un galet (19a,19b). 3) clamping head according to one of claims 1 and 2, characterized in that the guide means of the rocker consists of at least one roller (19a, 19b). 4) Tête de bridage selon la revendication 3, caractérisée en ce que l'axe (20) dudit galet (19a,19b) n'est pas disposé sur la ligne géométrique qui joint les points d'articulation du basculeur avec, d'une part, la biellette (12) et, d'autre part, la pièce d'actionnement (15). 4) clamping head according to claim 3, characterized in that the axis (20) of said roller (19a, 19b) is not disposed on the geometric line which joins the points of articulation of the rocker with, of a on the one hand, the connecting rod (12) and, on the other hand, the actuating part (15). 5) Tête de bridage selon l'une des revendications 1 à 4, caractérisée en ce que la pièce d'actionnement (15) est guidée par au moins un galet (17a,17b) dont elle est munie et au moins une rainure rectiligne (18a) de guidage ménagée dans la tête de guidage. 5) clamping head according to one of claims 1 to 4, characterized in that the actuating part (15) is guided by at least one roller (17a, 17b) with which it is provided and at least one rectilinear groove ( 18a) guide formed in the guide head. 6) Tête de bridage selon la revendication 5, caractérisée en ce que le galet (17a,17b) de la pièce d'actionnement est aménagé autour de l'axe (14) d'articulation de ladite pièce avec le levier basculeur. 6) Clamping head according to claim 5, characterized in that the roller (17a, 17b) of the actuating part is arranged around the axis (14) of articulation of said part with the rocking lever. 7) Tête de bridage selon l'une des revendications 1 à 6, caractérisée en ce qu'elle comporte un système de blocage de position qui vient agir élastiquement sur le levier basculeur (13a,13b) pour forcer celui-ci dans sa position de desserrage et dans sa position de serrage. 7) Clamping head according to one of claims 1 to 6, characterized in that it comprises a position locking system which acts elastically on the rocking lever (13a, 13b) to force the latter into its position loosening and in its clamping position. 8) Tête de bridage selon la revendication 7, caractérisée en ce que le système de blocage comporte au moins un galet de pression (22b) guidé et sollicité par un moyen élastique à venir s'appuyer sur le levier basculeur dont la forme appropriée permet audit galet de forcer ledit basculeur vers chacune de ses positions respectivement de desserrage et de serrage. 8) clamping head according to claim 7, characterized in that the locking system comprises at least one pressure roller (22b) guided and urged by an elastic means to come to bear on the rocker lever whose suitable shape allows said roller forcing said rocker towards each of its loosening and tightening positions, respectively. 9) Tête de bridage selon l'une des revendications 7 et 8, caractérisée en ce que le moyen élastique qui sollicite le galet de pression (22b) est un ressort à lame (25) muni d'un moyen (27) de réglage et/ou de suppression de la tension. 9) clamping head according to one of claims 7 and 8, characterized in that the elastic means which urges the pressure roller (22b) is a leaf spring (25) provided with a means (27) for adjustment and / or removal of the tension. 10) Tête de bridage selon l'une des revendications 1 à 9, caractérisée en ce les rainures de guidage (18a; 21a) sont ménagées par paire dans deux flasques (4a,4b) de la tête de bridage disposés en regard l'un de l'autre, tandis que les galets correspondants (17a,17b; 19a,19b) sont aussi prévus par paire. 10) clamping head according to one of claims 1 to 9, characterized in that the guide grooves (18a; 21a) are formed in pairs in two flanges (4a, 4b) of the clamping head arranged opposite one on the other, while the corresponding rollers (17a, 17b; 19a, 19b) are also provided in pairs. 11) Tête de bridage selon la revendication 10, caractérisée en ce que le levier d'actionnement (11a,11b) est solidaire en rotation avec le bras de serrage (5) par un arbre (10) solidaire dudit levier et sur lequel est fixé le bras, tandis que ledit arbre est monté dans des paliers aménagés dans les flasques (4a,4b) de la tête de bridage. 11) Clamping head according to claim 10, characterized in that the actuation lever (11a, 11b) is integral in rotation with the clamping arm (5) by a shaft (10) integral with said lever and on which is fixed the arm, while said shaft is mounted in bearings arranged in the flanges (4a, 4b) of the clamping head. 12) Tête de bridage selon l'une des revendications 1 à 11, caractérisée en ce qu'elle comporte une seule biellette (12) qui vient agir sur une paire de leviers d'actionnement (11a,11b). 12) Clamping head according to one of claims 1 to 11, characterized in that it comprises a single link (12) which acts on a pair of actuating levers (11a, 11b). 13) Tête de bridage selon l'une des revendications 1 à 12, caractérisée en ce que le levier basculeur est constitué par deux plaques (13a,13b) fixées entre elles, la pièce d'actionnement (15) étant articulée entre lesdites plaques. 13) Clamping head according to one of claims 1 to 12, characterized in that the rocking lever consists of two plates (13a, 13b) fixed together, the actuating part (15) being articulated between said plates. 14) Tête de bridage à au moins une paire de bras de serrage (5) et un système d'entraînement (3) muni d'au moins une pièce d'actionnement (15), selon l'une des revendications 1 à 13, caractérisée en ce qu'elle comporte pour chaque bras un système articulé (12; 11a,11b; 13a, 13b) muni d'au moins un galet (19a,19b) coopérant avec au moins une rainure curviligne (21a) de guidage, les systèmes étant positionnés symétriquement par rapport à un plan de manière telle que le système d'entraînement manoeuvre les bras (5) de la paire en rotation inverse. 14) Clamping head with at least one pair of clamping arms (5) and a drive system (3) provided with at least one actuating part (15), according to one of claims 1 to 13, characterized in that it comprises for each arm an articulated system (12; 11a, 11b; 13a, 13b) provided with at least one roller (19a, 19b) cooperating with at least one curvilinear guide groove (21a), the systems being positioned symmetrically with respect to a plane so that the drive system maneuvers the arms (5) of the pair in reverse rotation.
EP19930402720 1992-11-05 1993-11-05 Clamping head Expired - Lifetime EP0596808B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9213305 1992-11-05
FR9213305 1992-11-05

Publications (2)

Publication Number Publication Date
EP0596808A1 true EP0596808A1 (en) 1994-05-11
EP0596808B1 EP0596808B1 (en) 1996-02-28

Family

ID=9435248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19930402720 Expired - Lifetime EP0596808B1 (en) 1992-11-05 1993-11-05 Clamping head

Country Status (3)

Country Link
EP (1) EP0596808B1 (en)
DE (1) DE69301651T2 (en)
ES (1) ES2084471T3 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615817A1 (en) * 1993-03-16 1994-09-21 Génus Technologie Industrielle (G.T.I.), S.A. Clamping device, especially for clamping metal sheets or profiles against each other
EP0692343A1 (en) * 1994-07-13 1996-01-17 DE-STA-CO Metallerzeugnisse GmbH Clamping device
FR2782466A1 (en) * 1998-08-21 2000-02-25 Martin Breiter DEVICE FOR SETTING BY TIGHTENING A WORKPIECE ON A NON-CYLINDRICAL SHAFT
EP1179394A3 (en) * 2000-08-03 2003-08-27 Norgren Automotive Inc. Over-center power clamp toggle mechanism
EP1350591A1 (en) * 2002-04-02 2003-10-08 Luciano Migliori clamping device for laser welding
US6666489B2 (en) * 2001-08-23 2003-12-23 Btm Corporation Sealed gripper apparatus
FR3132454A1 (en) * 2022-02-06 2023-08-11 Marc Eveillé Clamping toggle clamp actuated by a cylinder

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202005004598U1 (en) * 2005-03-18 2006-07-27 De-Sta-Co Europe Gmbh jig

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347542A (en) * 1965-04-19 1967-10-17 Seizer Power Clamp Inc Toggle clamp
US3482830A (en) * 1966-04-05 1969-12-09 Jack J Sendoykas Clamp
FR2427179A1 (en) * 1978-05-29 1979-12-28 Cecchi Gerard Car component positioning device for welding - has enclosed linkage on pneumatic actuator and protected by casing from weld metal
US4396183A (en) * 1982-05-10 1983-08-02 Lymburner Robert K Power actuated clamp
FR2630953A1 (en) * 1988-05-06 1989-11-10 Genus Int CLAMPING DEVICE FOR PLATES OR PROFILES AGAINST THE OTHER
EP0370914A1 (en) * 1988-11-25 1990-05-30 POLYMATIC Société Anonyme dite: Clamping head with clearance compensation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3347542A (en) * 1965-04-19 1967-10-17 Seizer Power Clamp Inc Toggle clamp
US3482830A (en) * 1966-04-05 1969-12-09 Jack J Sendoykas Clamp
FR2427179A1 (en) * 1978-05-29 1979-12-28 Cecchi Gerard Car component positioning device for welding - has enclosed linkage on pneumatic actuator and protected by casing from weld metal
US4396183A (en) * 1982-05-10 1983-08-02 Lymburner Robert K Power actuated clamp
FR2630953A1 (en) * 1988-05-06 1989-11-10 Genus Int CLAMPING DEVICE FOR PLATES OR PROFILES AGAINST THE OTHER
EP0370914A1 (en) * 1988-11-25 1990-05-30 POLYMATIC Société Anonyme dite: Clamping head with clearance compensation

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0615817A1 (en) * 1993-03-16 1994-09-21 Génus Technologie Industrielle (G.T.I.), S.A. Clamping device, especially for clamping metal sheets or profiles against each other
EP0692343A1 (en) * 1994-07-13 1996-01-17 DE-STA-CO Metallerzeugnisse GmbH Clamping device
FR2782466A1 (en) * 1998-08-21 2000-02-25 Martin Breiter DEVICE FOR SETTING BY TIGHTENING A WORKPIECE ON A NON-CYLINDRICAL SHAFT
EP0982100A1 (en) * 1998-08-21 2000-03-01 Martin Breiter Device for fixing a piece on a non-cylindrical shaft by clamping
EP1179394A3 (en) * 2000-08-03 2003-08-27 Norgren Automotive Inc. Over-center power clamp toggle mechanism
US6666489B2 (en) * 2001-08-23 2003-12-23 Btm Corporation Sealed gripper apparatus
EP1350591A1 (en) * 2002-04-02 2003-10-08 Luciano Migliori clamping device for laser welding
US6812428B2 (en) 2002-04-02 2004-11-02 Luciano Migliori Clamping device for laser welding
FR3132454A1 (en) * 2022-02-06 2023-08-11 Marc Eveillé Clamping toggle clamp actuated by a cylinder

Also Published As

Publication number Publication date
ES2084471T3 (en) 1996-05-01
DE69301651D1 (en) 1996-04-04
DE69301651T2 (en) 1996-09-26
EP0596808B1 (en) 1996-02-28

Similar Documents

Publication Publication Date Title
EP0500430B1 (en) Pivotable flap device for regulating the air flow through a heat exchanger
EP0387121B1 (en) Clamping device for a long piece such as a punch, a die or such a tool on a table of a press bending machine
EP0886712A1 (en) Device for protecting and guiding an elongate part connected via a hinge to two mutually hinged rigid elements, and industrial applications thereof
EP0596808B1 (en) Clamping head
EP1734552B1 (en) Actuating device for an electrical switch device with rotational locking means
FR2923099A1 (en) ELECTROMECHANICAL ACTUATOR WITH SPRING SPIRE SPRING-TYPE MECHANICAL BRAKE
CA1223024A (en) Device for disconnecting a load and visibly opening an electrical circuit
EP2602804B1 (en) Pole operating device in a medium-voltage electric control apparatus
EP0385818B1 (en) Machine to cut and fold a printed paper web
FR2474126A1 (en) UNIVERSAL TENSIONER FOR CHAIN OR TRANSMISSION BELT
EP2717284B1 (en) Operating device of an electric protection apparatus and electric protection apparatus comprising same
EP1122031A1 (en) Clamping tool and especially crimping tool
EP0404609A1 (en) Panic door lock assembly
EP1993115B1 (en) Device for controlling the connection and disconnection of two parts and electrical appliance comprising such a device
FR2653929A1 (en) KEY ACTUATOR MOBILE FOR SAFETY SWITCH.
EP0691448A1 (en) Door hinge having stop notches, particularly in an automotive vehicle
EP0086165B1 (en) Device for supporting, positioning and driving a tubular support during the winding of a web
FR2656032A1 (en) Device for holding an opening element
EP1670009B1 (en) Operation mechanism for a multipole switch
EP0028973A1 (en) Actuating device for an up-and-over door, and door so equipped
FR2654664A1 (en) Vice, the clamping force of which is limited to a given value, and particularly a ski
BE1003725A3 (en) Arrangement for opening and closing a mobile vehicle door, such as apassenger vehicle
EP0378496B1 (en) Connecting and locking system for coaxial tubes
FR2691944A1 (en) Sail drum mounting - has tubular section, held between mast and hull, rotated by mechanism and mounted by intermediate piece which has complementary clip couplings with mechanism
FR2812124A1 (en) KNIFE DISCONNECTOR WITH A NEUTRAL BLOCKING SYSTEM

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT SE

17P Request for examination filed

Effective date: 19941020

17Q First examination report despatched

Effective date: 19950428

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT SE

ITF It: translation for a ep patent filed

Owner name: LENZI & C.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960226

REF Corresponds to:

Ref document number: 69301651

Country of ref document: DE

Date of ref document: 19960404

111L Licence recorded

Free format text: 960208 0100 MECACHROME

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2084471

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: FR

Ref legal event code: CL

REG Reference to a national code

Ref country code: FR

Ref legal event code: CL

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20061110

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20061116

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061130

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20080128

Year of fee payment: 15

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20071105

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071106

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071105

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20081120

Year of fee payment: 16

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20081128

Year of fee payment: 16

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071105

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090603

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20100730

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091130

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20110309

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20110308

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20091106